v3.26.3
Pay vs Performance Disclosure - USD ($)
 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Pay vs Performance Disclosure      
Pay vs Performance Disclosure, Table  
YearSummary Compensation Table Total for PEOsCompensation Actually Paid to PEOsAverage Summary Compensation Table Total for Non-PEO NEOs (4)Average Compensation Actually Paid to Non-PEO NEOs (5)Value of Initial Fixed $100 (6)
Net Income (loss) ($ in thousands)
Company Selected Financial Measure ($ in thousands) (8)
Stephen C. Chang (1)(2)Stephen C. Chang (1) (3)Total Shareholder ReturnPeer Group Total Shareholder Return (7)
20263,401,01410,281,3911,050,559 2,670,887156426(42,265)678,927
20254,220,8191,806,1381,352,779 215,583236278(96,976)696,162
20242,969,0622,606,1401,253,874 784,275343274(11,081)657,274
  
Company Selected Measure Name revenue    
Named Executive Officers, Footnote
Stephen C. Chang served as the Company’s PEO for the entirety of fiscal years 2026, 2025 and 2024.
Represents the average of the amounts reported for the Company’s Non-PEO NEOs as a group in the “Total” column of the Summary Compensation Table in each applicable year. The Company’s Non-PEO NEOs for each year presented are as follows:
2026
Yifan Liang
Wenjun LiBing Xue 		2025Yifan Liang
Mike Chang
Wenjun Li 		2024Yifan LiangMike ChangWenjun LiBing Xue
Peer Group Issuers, Footnote The Peer Group consists of the Philadelphia Semiconductor Index, an independently prepared index composed of the 30 largest U.S. companies primarily involved in the design, distribution, manufacture, and sale of semiconductors.    
Adjustment To PEO Compensation, Footnote  
Fiscal YearFiscal YearFiscal Year
2026 ($)2025 ($)2024 ($)
Stephen C. Chang
Stephen C. Chang
Stephen C. Chang
Summary Compensation Table Total3,401,014 4,220,819 2,969,062 
Adjustments for Equity Awards
Grant Date Fair Value of Option and Stock Awards Granted in Fiscal Year
(2,893,050)(3,727,350)(2,478,250)
Fair Value at Fiscal Year-End of Outstanding and Unvested Option and Stock Awards Granted in Fiscal Year
6,389,550 3,464,100 4,297,550 
Change in Fair Value of Outstanding and Unvested Option and Stock Awards Granted in Prior Fiscal Years
3,751,619 (1,476,479)338,404 
Change in Fair Value as of Vesting Date of Option and Stock Awards Granted in Prior Fiscal Years For Which Applicable Vesting Conditions Were Satisfied During Fiscal Year
(367,742)(674,952)(449,306)
Fair Value as of Prior Fiscal Year-End of Option and Stock Awards Granted in Prior Fiscal Years That Failed to Meet Applicable Vesting Conditions During Fiscal Year
— — (2,071,320)
Compensation Actually Paid
10,281,391 1,806,138 2,606,140 
  
Non-PEO NEO Average Total Compensation Amount $ 1,050,559 $ 1,352,779 $ 1,253,874
Non-PEO NEO Average Compensation Actually Paid Amount 2,670,887 $ 215,583 784,275
Adjustment to Non-PEO NEO Compensation Footnote  
Reconciliation of Average Summary Compensation Table Total to Average Compensation Actually Paid for Non-PEO NEOs 


Fiscal YearFiscal YearFiscal Year
2026 ($)2025 ($)2024 ($)
Average of Summary Compensation Table Total1,050,559 1,352,779 1,253,874 
Adjustments for Equity Awards (The information below represents the average adjustment for Non-PEO NEOs)
Grant Date Fair Value of Option and Stock Awards Granted in Fiscal Year
(678,617)(966,350)(862,000)
Fair Value at Fiscal Year-End of Outstanding and Unvested Option and Stock Awards Granted in Fiscal Year
1,498,783 898,100 1,494,800 
Change in Fair Value of Outstanding and Unvested Option and Stock Awards Granted in Prior Fiscal Years
907,431 (625,771)251,364 
Change in Fair Value as of Vesting Date of Option and Stock Awards Granted in Prior Fiscal Years For Which Applicable Vesting Conditions Were Satisfied During Fiscal Year
(107,269)(443,175)(492,984)
Fair Value as of Prior Fiscal Year-End of Option and Stock Awards Granted in Prior Fiscal Years That Failed to Meet Applicable Vesting Conditions During Fiscal Year
— — (860,779)
Compensation Actually Paid
2,670,887 215,583 784,275 
  
Tabular List, Table  
Revenue
EBITDA
Gross Margin
Non-GAAP Gross Margin
  
Total Shareholder Return Amount 156 $ 236 343
Peer Group Total Shareholder Return Amount 426 278 274
Net Income (Loss) $ (42,265,000) $ (96,976,000) $ (11,081,000)
Company Selected Measure Amount 678,927,000 696,162,000 657,274,000
PEO Name Stephen C. Chang    
Additional 402(v) Disclosure Represents the total compensation reported for each PEO for each corresponding year in the “Total” column of the Summary Compensation Table.
The dollar amounts reported in this column represent the amount of compensation actually paid to each of our PEOs for the applicable fiscal year, computed in accordance with Item 402(v) of Regulation S-K, which do not reflect the compensation actually earned, realized, or received by our PEOs in the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, we have made certain adjustments to each PEO’s total compensation, as reported in the Summary Compensation Table for each year, to determine the compensation actually paid, and a reconciliation of such adjustments is set forth below under “Reconciliation of Summary Compensation Table Total to Compensation Actually Paid for PEOs”.
The dollar amounts reported in this column is the average compensation actually paid for our Non-PEO NEOs in each applicable year, computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to our NEOs during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, we have made certain adjustment to the average of the Non-PEO NEO’s total compensation, as reported in the Summary Compensation Table for each applicable year, and a reconciliation of such adjustment is set forth below under “Reconciliation to Average Summary Compensation Table Total to Average Compensation Actually Paid for Non-PEO NEOs”
The amounts reported represent the cumulative total shareholder return (“TSR”) calculated in accordance with Item 201(e) of Regulation S-K, assuming an initial fixed investment of $100, and that all dividends, if any, were reinvested.
The metric in this column, the Company’s revenue in the Company’s audited financial statements, in our assessment, represents the most important Company financial performance measure (that is not otherwise disclosed in this table) used to link Compensation Actually Paid to the Company’s performance for our PEOs and Non-PEO NEOs for all years presented. We believe revenue is the most important financial performance measure because as a technology company, our ability to grow and expand our market is a critical element of our success, and our investors and shareholders evaluate our success by the amount of sales we make to customers. Other key financial performance measures linked to executive compensation are described in the section below titled “Financial Performance Measures”.
    
Measure:: 1      
Pay vs Performance Disclosure      
Name   Revenue  
Measure:: 2      
Pay vs Performance Disclosure      
Name   EBITDA  
Measure:: 3      
Pay vs Performance Disclosure      
Name   Gross Margin  
Measure:: 4      
Pay vs Performance Disclosure      
Name   Non-GAAP Gross Margin  
Stephen C. Chang [Member]      
Pay vs Performance Disclosure      
PEO Total Compensation Amount $ 3,401,014 $ 4,220,819 $ 2,969,062
PEO Actually Paid Compensation Amount 10,281,391 1,806,138 2,606,140
PEO | Stephen C. Chang [Member] | Equity Awards Granted During The Year, Grant Date Fair Value [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount (2,893,050) (3,727,350) (2,478,250)
PEO | Stephen C. Chang [Member] | Equity Awards Granted During the Year, Unvested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 6,389,550 3,464,100 4,297,550
PEO | Stephen C. Chang [Member] | Equity Awards Granted in Prior Years, Unvested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 3,751,619 (1,476,479) 338,404
PEO | Stephen C. Chang [Member] | Equity Awards Granted in Prior Years, Vested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount (367,742) (674,952) (449,306)
PEO | Stephen C. Chang [Member] | Equity Awards that Failed To Meet Vesting Conditions [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 0 0 (2,071,320)
Non-PEO NEO | Equity Awards Granted During The Year, Grant Date Fair Value [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount (678,617) (966,350) (862,000)
Non-PEO NEO | Equity Awards Granted During the Year, Unvested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 1,498,783 898,100 1,494,800
Non-PEO NEO | Equity Awards Granted in Prior Years, Unvested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount 907,431 (625,771) 251,364
Non-PEO NEO | Equity Awards Granted in Prior Years, Vested [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount (107,269) (443,175) (492,984)
Non-PEO NEO | Equity Awards that Failed To Meet Vesting Conditions [Member]      
Pay vs Performance Disclosure      
Adjustment to Compensation, Amount $ 0 $ 0 $ (860,779)